condition	mean	min	max
4 h after light	5.858795	5.18582	6.53177
8 h after light	4.333255	4.062	4.60451
12 h after light	5.34463	5.06386	5.6254
4 h after dark	7.534323333333333	7.38098	7.76479
8 h after dark	8.007936666666666	6.72893	9.83887
12 h after dark	7.2295	6.72473	7.66231